Re: [CAD_CAM_EDM_DRO] Re: Chinese Lathes.

Terry
I am totally according with you in all points.
I tried to teach 4 mechanics and 2 mechanical engineers to scrape.
Not anyone got to the point even to sharpen well the scraper bit.
At most they became good at rough scraping.
After some 3 or 4 dozen machines not even I myself make the
professional surface scraping
well done.
So I prefer a smooth surface and make lubrication grooves
with a Foredom motor tool.
But as you say cleaning and fine tuning should be done.
Good Luck
Sven Peter



hexagon@... wrote:

> --- Sven,
> these groups are similar, and like this one, it is not about making
> chips at all! They are about scraping beds and ways. Making concrete
> filled vibration damping lumps that weigh more than the the little
> lathe and talking in tenths of a tenth etc.
> I would recommend anyone that wants to be a hobby machinist to steer
> clear of these lists and the bad advise given by well intended
> computery types that cannot sharpen a tool bit (an exageration but
> close)
> Actually my Chinese lathe was purchased in 1984 (how time flies) and
> the unhardened parts have not worn out. The chuck is still so accurate
> that I hardly use the collets.
> I have worked for the last 35 years in the engineering trade and I
> would not have dreamed of trying to scrape a brand new lathe, let
> alone encourage an untrained guy to wreck his new purchase!
> The machining on this type of equipment is to a very good standard but
> the assembly is crap. Just strip it down (not the headstock alignment)
> and clean and lubricate reassemble and Adjust. You have to strip it
> down to remove the rust preventative grease anyway. Make yourself some
> felt wipes and screw it to the cross slide ways.
> Good old US companies like Delta get there machines built in the far
> east so don't knck them.
> terry